MusicManager.java

package info.u250.c2d.engine.resources;

import info.u250.c2d.engine.Engine;

import com.badlogic.gdx.audio.Music;
import com.badlogic.gdx.utils.Disposable;
import com.badlogic.gdx.utils.ObjectMap;
/**
 * @author lycying@gmail.com
 */
public class MusicManager implements Disposable{
	
	ObjectMap<String,Music> musics = new ObjectMap<String,Music>();
	
	float musicVolume = 1f;
	
	public float getMusicVolume(){
		return musicVolume;
	}
	public void setVolume(float volume){
		for(Music music:musics.values()){
			music.setVolume(volume);
		}
		this.musicVolume = volume;
	}

	public void stopMusic(String res){
		final Music musicFromPool = musics.get(res);
		if(null==musicFromPool){
			final Music musicFromAssets = Engine.resource(res);
			musics.put(res, musicFromAssets);
			musicFromAssets.stop();
		}else{
			musicFromPool.stop();
		}
	}

	public void pauseMusic(String res){
		final Music musicFromPool = musics.get(res);
		if(null==musicFromPool){
			final Music musicFromAssets = Engine.resource(res);
			musics.put(res, musicFromAssets);
			if(musicFromAssets.isPlaying()){
				musicFromAssets.pause();
			}
		}else{
			if(musicFromPool.isPlaying()){
				musicFromPool.pause();
			}
		}
	}
	public void playMusic(String res,boolean loop){
		final Music musicFromPool = musics.get(res);
		if(null==musicFromPool){
			final Music musicFromAssets =Engine.resource(res);
			musics.put(res, musicFromAssets);
			this.playMusic(musicFromAssets,loop);
		}else{
			this.playMusic(musicFromPool,loop);
		}
	}
	
	private void playMusic(Music music,boolean loop){
		if(!music.isPlaying()){
			music.setVolume(musicVolume);
			music.setLooping(true);
			music.play();
		}
		
	}
	
	public void dispose(){
		for(Music music:musics.values()){
			if(null!=music)music.dispose();
		}
		this.musics.clear();
		this.musicVolume = 1.0f;
	}
}